Seth Godin asks for a bluetooth lavaliere microphone.
May I introduce you to the Sony ECM-HW1, Seth? The silvery grey piece on the left is the microphone, and the grey block on the right is the receiver. It's a little bulky, yes, but can be clipped to your lapel, strapped to an arm band, or hung around your neck with the provided neck strap. In addition, it has a small fuzzy grey cloth casing that it can be wrapped in to reduce wind noise. It runs off two triple A batteries, and has a range of 100 feet.